./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label39.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label39.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 84a6ad2db8111b8f127eba67b6f3c05b2a795f20 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:09:47,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:09:47,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:09:47,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:09:47,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:09:47,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:09:47,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:09:47,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:09:47,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:09:47,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:09:47,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:09:47,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:09:47,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:09:47,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:09:47,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:09:47,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:09:47,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:09:47,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:09:47,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:09:47,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:09:47,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:09:47,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:09:47,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:09:47,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:09:47,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:09:47,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:09:47,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:09:47,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:09:47,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:09:47,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:09:47,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:09:47,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:09:47,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:09:47,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:09:47,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:09:47,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:09:47,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:09:47,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:09:47,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:09:47,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:09:47,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:09:47,921 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:09:47,944 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:09:47,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:09:47,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:09:47,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:09:47,946 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:09:47,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:09:47,947 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:09:47,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:09:47,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:09:47,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:09:47,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:09:47,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:09:47,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:09:47,948 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:09:47,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:09:47,948 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:09:47,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:09:47,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:09:47,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:09:47,949 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:09:47,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:09:47,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:09:47,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:09:47,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:09:47,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:09:47,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:09:47,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:09:47,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:09:47,951 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:09:47,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84a6ad2db8111b8f127eba67b6f3c05b2a795f20 [2020-11-28 03:09:48,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:09:48,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:09:48,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:09:48,217 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:09:48,218 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:09:48,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem02_label39.c [2020-11-28 03:09:48,312 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer/data/7f7e3b6aa/574a13666ba149a892ae52d62eafbc10/FLAGf79b0fb27 [2020-11-28 03:09:48,963 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:09:48,965 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/sv-benchmarks/c/eca-rers2012/Problem02_label39.c [2020-11-28 03:09:48,977 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer/data/7f7e3b6aa/574a13666ba149a892ae52d62eafbc10/FLAGf79b0fb27 [2020-11-28 03:09:49,209 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer/data/7f7e3b6aa/574a13666ba149a892ae52d62eafbc10 [2020-11-28 03:09:49,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:09:49,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:09:49,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:49,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:09:49,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:09:49,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45a29b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49, skipping insertion in model container [2020-11-28 03:09:49,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:09:49,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:09:49,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:49,681 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:09:49,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:49,821 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:09:49,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49 WrapperNode [2020-11-28 03:09:49,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:49,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:09:49,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:09:49,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:09:49,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:09:49,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:09:49,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:09:49,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:09:49,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... [2020-11-28 03:09:49,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:09:49,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:09:49,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:09:49,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:09:49,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:09:50,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:09:50,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:09:50,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:09:50,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:09:51,275 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:09:51,276 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:09:51,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:51 BoogieIcfgContainer [2020-11-28 03:09:51,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:09:51,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:09:51,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:09:51,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:09:51,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:09:49" (1/3) ... [2020-11-28 03:09:51,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6a4b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:51, skipping insertion in model container [2020-11-28 03:09:51,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:49" (2/3) ... [2020-11-28 03:09:51,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6a4b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:51, skipping insertion in model container [2020-11-28 03:09:51,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:51" (3/3) ... [2020-11-28 03:09:51,288 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label39.c [2020-11-28 03:09:51,300 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:09:51,304 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:09:51,316 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:09:51,354 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:09:51,354 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:09:51,354 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:09:51,354 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:09:51,354 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:09:51,354 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:09:51,355 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:09:51,355 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:09:51,375 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-11-28 03:09:51,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-11-28 03:09:51,388 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:51,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:51,389 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:51,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:51,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1738135197, now seen corresponding path program 1 times [2020-11-28 03:09:51,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:51,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851665367] [2020-11-28 03:09:51,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:51,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:51,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851665367] [2020-11-28 03:09:51,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:51,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:09:51,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3084492] [2020-11-28 03:09:51,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:51,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:51,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:51,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:51,830 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 3 states. [2020-11-28 03:09:52,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:52,786 INFO L93 Difference]: Finished difference Result 631 states and 1071 transitions. [2020-11-28 03:09:52,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:52,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-11-28 03:09:52,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:52,811 INFO L225 Difference]: With dead ends: 631 [2020-11-28 03:09:52,811 INFO L226 Difference]: Without dead ends: 318 [2020-11-28 03:09:52,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:52,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-11-28 03:09:52,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2020-11-28 03:09:52,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-11-28 03:09:52,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 467 transitions. [2020-11-28 03:09:52,904 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 467 transitions. Word has length 111 [2020-11-28 03:09:52,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:52,905 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 467 transitions. [2020-11-28 03:09:52,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:52,905 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 467 transitions. [2020-11-28 03:09:52,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-11-28 03:09:52,909 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:52,909 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:52,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:09:52,910 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:52,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:52,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1948065238, now seen corresponding path program 1 times [2020-11-28 03:09:52,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:52,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723498373] [2020-11-28 03:09:52,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:53,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:53,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723498373] [2020-11-28 03:09:53,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:53,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:09:53,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932764405] [2020-11-28 03:09:53,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:53,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:53,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:53,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:53,042 INFO L87 Difference]: Start difference. First operand 318 states and 467 transitions. Second operand 3 states. [2020-11-28 03:09:53,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:53,854 INFO L93 Difference]: Finished difference Result 919 states and 1357 transitions. [2020-11-28 03:09:53,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:53,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-11-28 03:09:53,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:53,859 INFO L225 Difference]: With dead ends: 919 [2020-11-28 03:09:53,859 INFO L226 Difference]: Without dead ends: 603 [2020-11-28 03:09:53,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:53,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2020-11-28 03:09:53,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 601. [2020-11-28 03:09:53,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-11-28 03:09:53,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 776 transitions. [2020-11-28 03:09:53,889 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 776 transitions. Word has length 115 [2020-11-28 03:09:53,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:53,890 INFO L481 AbstractCegarLoop]: Abstraction has 601 states and 776 transitions. [2020-11-28 03:09:53,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:53,890 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 776 transitions. [2020-11-28 03:09:53,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-11-28 03:09:53,893 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:53,894 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:53,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:09:53,894 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:53,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:53,895 INFO L82 PathProgramCache]: Analyzing trace with hash -615414487, now seen corresponding path program 1 times [2020-11-28 03:09:53,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:53,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942674644] [2020-11-28 03:09:53,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:53,995 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:53,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942674644] [2020-11-28 03:09:53,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832710716] [2020-11-28 03:09:53,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:09:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:54,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:09:54,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:54,275 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:09:54,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:09:54,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-28 03:09:54,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396880902] [2020-11-28 03:09:54,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:54,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:54,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:54,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:09:54,278 INFO L87 Difference]: Start difference. First operand 601 states and 776 transitions. Second operand 3 states. [2020-11-28 03:09:55,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:55,216 INFO L93 Difference]: Finished difference Result 1486 states and 1973 transitions. [2020-11-28 03:09:55,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:55,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-11-28 03:09:55,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:55,223 INFO L225 Difference]: With dead ends: 1486 [2020-11-28 03:09:55,229 INFO L226 Difference]: Without dead ends: 887 [2020-11-28 03:09:55,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:09:55,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-11-28 03:09:55,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 885. [2020-11-28 03:09:55,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 885 states. [2020-11-28 03:09:55,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1155 transitions. [2020-11-28 03:09:55,271 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1155 transitions. Word has length 120 [2020-11-28 03:09:55,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:55,274 INFO L481 AbstractCegarLoop]: Abstraction has 885 states and 1155 transitions. [2020-11-28 03:09:55,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:55,274 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1155 transitions. [2020-11-28 03:09:55,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-11-28 03:09:55,283 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:55,284 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:55,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-28 03:09:55,506 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:55,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:55,507 INFO L82 PathProgramCache]: Analyzing trace with hash -2067774555, now seen corresponding path program 1 times [2020-11-28 03:09:55,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:55,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542822747] [2020-11-28 03:09:55,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:55,615 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:55,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542822747] [2020-11-28 03:09:55,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:55,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:09:55,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140143564] [2020-11-28 03:09:55,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:55,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:55,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:55,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:55,618 INFO L87 Difference]: Start difference. First operand 885 states and 1155 transitions. Second operand 3 states. [2020-11-28 03:09:56,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:56,268 INFO L93 Difference]: Finished difference Result 2469 states and 3250 transitions. [2020-11-28 03:09:56,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:56,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-11-28 03:09:56,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:56,278 INFO L225 Difference]: With dead ends: 2469 [2020-11-28 03:09:56,278 INFO L226 Difference]: Without dead ends: 1586 [2020-11-28 03:09:56,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:56,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2020-11-28 03:09:56,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1586. [2020-11-28 03:09:56,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1586 states. [2020-11-28 03:09:56,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 1996 transitions. [2020-11-28 03:09:56,362 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 1996 transitions. Word has length 121 [2020-11-28 03:09:56,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:56,363 INFO L481 AbstractCegarLoop]: Abstraction has 1586 states and 1996 transitions. [2020-11-28 03:09:56,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:56,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 1996 transitions. [2020-11-28 03:09:56,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-11-28 03:09:56,366 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:56,366 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:56,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:09:56,367 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:56,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:56,369 INFO L82 PathProgramCache]: Analyzing trace with hash -84758431, now seen corresponding path program 1 times [2020-11-28 03:09:56,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:56,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351925380] [2020-11-28 03:09:56,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:56,478 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-28 03:09:56,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351925380] [2020-11-28 03:09:56,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606612812] [2020-11-28 03:09:56,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:09:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:56,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:09:56,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:56,620 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-28 03:09:56,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:09:56,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-11-28 03:09:56,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668937264] [2020-11-28 03:09:56,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:56,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:56,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:56,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:09:56,624 INFO L87 Difference]: Start difference. First operand 1586 states and 1996 transitions. Second operand 3 states. [2020-11-28 03:09:57,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:57,020 INFO L93 Difference]: Finished difference Result 3018 states and 3825 transitions. [2020-11-28 03:09:57,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:57,021 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-11-28 03:09:57,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:57,029 INFO L225 Difference]: With dead ends: 3018 [2020-11-28 03:09:57,030 INFO L226 Difference]: Without dead ends: 1434 [2020-11-28 03:09:57,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:09:57,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2020-11-28 03:09:57,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1434. [2020-11-28 03:09:57,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1434 states. [2020-11-28 03:09:57,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 1786 transitions. [2020-11-28 03:09:57,071 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 1786 transitions. Word has length 126 [2020-11-28 03:09:57,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:57,073 INFO L481 AbstractCegarLoop]: Abstraction has 1434 states and 1786 transitions. [2020-11-28 03:09:57,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:57,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 1786 transitions. [2020-11-28 03:09:57,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-11-28 03:09:57,077 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:57,077 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:57,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:09:57,306 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:57,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:57,306 INFO L82 PathProgramCache]: Analyzing trace with hash 248406562, now seen corresponding path program 1 times [2020-11-28 03:09:57,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:57,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986897808] [2020-11-28 03:09:57,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:57,406 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:57,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986897808] [2020-11-28 03:09:57,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:57,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:09:57,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523038215] [2020-11-28 03:09:57,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:09:57,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:57,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:09:57,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:09:57,409 INFO L87 Difference]: Start difference. First operand 1434 states and 1786 transitions. Second operand 5 states. [2020-11-28 03:09:58,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:58,646 INFO L93 Difference]: Finished difference Result 3611 states and 4481 transitions. [2020-11-28 03:09:58,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:09:58,648 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2020-11-28 03:09:58,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:58,661 INFO L225 Difference]: With dead ends: 3611 [2020-11-28 03:09:58,661 INFO L226 Difference]: Without dead ends: 2033 [2020-11-28 03:09:58,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:09:58,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2033 states. [2020-11-28 03:09:58,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2033 to 1434. [2020-11-28 03:09:58,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1434 states. [2020-11-28 03:09:58,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 1692 transitions. [2020-11-28 03:09:58,711 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 1692 transitions. Word has length 140 [2020-11-28 03:09:58,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:58,718 INFO L481 AbstractCegarLoop]: Abstraction has 1434 states and 1692 transitions. [2020-11-28 03:09:58,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:09:58,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 1692 transitions. [2020-11-28 03:09:58,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-11-28 03:09:58,722 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:58,723 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:58,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:09:58,723 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:58,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:58,724 INFO L82 PathProgramCache]: Analyzing trace with hash -680888340, now seen corresponding path program 1 times [2020-11-28 03:09:58,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:58,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502994172] [2020-11-28 03:09:58,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:58,888 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:58,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502994172] [2020-11-28 03:09:58,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638170085] [2020-11-28 03:09:58,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:09:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:58,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:09:58,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:59,082 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-28 03:09:59,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:09:59,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-28 03:09:59,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234365341] [2020-11-28 03:09:59,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:59,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:59,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:59,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:09:59,085 INFO L87 Difference]: Start difference. First operand 1434 states and 1692 transitions. Second operand 3 states. [2020-11-28 03:09:59,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:59,632 INFO L93 Difference]: Finished difference Result 2724 states and 3236 transitions. [2020-11-28 03:09:59,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:59,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-11-28 03:09:59,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:59,642 INFO L225 Difference]: With dead ends: 2724 [2020-11-28 03:09:59,642 INFO L226 Difference]: Without dead ends: 1432 [2020-11-28 03:09:59,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:09:59,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-11-28 03:09:59,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1432. [2020-11-28 03:09:59,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1432 states. [2020-11-28 03:09:59,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1607 transitions. [2020-11-28 03:09:59,676 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1607 transitions. Word has length 144 [2020-11-28 03:09:59,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:59,676 INFO L481 AbstractCegarLoop]: Abstraction has 1432 states and 1607 transitions. [2020-11-28 03:09:59,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:59,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1607 transitions. [2020-11-28 03:09:59,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-11-28 03:09:59,680 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:59,680 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:59,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:09:59,898 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:59,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:59,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1972287809, now seen corresponding path program 1 times [2020-11-28 03:09:59,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:59,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801410449] [2020-11-28 03:09:59,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:00,001 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:00,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801410449] [2020-11-28 03:10:00,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:00,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:10:00,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218247142] [2020-11-28 03:10:00,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:00,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:00,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:00,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:00,008 INFO L87 Difference]: Start difference. First operand 1432 states and 1607 transitions. Second operand 3 states. [2020-11-28 03:10:00,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:00,461 INFO L93 Difference]: Finished difference Result 3572 states and 4035 transitions. [2020-11-28 03:10:00,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:00,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2020-11-28 03:10:00,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:00,481 INFO L225 Difference]: With dead ends: 3572 [2020-11-28 03:10:00,481 INFO L226 Difference]: Without dead ends: 2282 [2020-11-28 03:10:00,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:00,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2020-11-28 03:10:00,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2275. [2020-11-28 03:10:00,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2275 states. [2020-11-28 03:10:00,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2275 states to 2275 states and 2496 transitions. [2020-11-28 03:10:00,532 INFO L78 Accepts]: Start accepts. Automaton has 2275 states and 2496 transitions. Word has length 151 [2020-11-28 03:10:00,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:00,532 INFO L481 AbstractCegarLoop]: Abstraction has 2275 states and 2496 transitions. [2020-11-28 03:10:00,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:10:00,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2275 states and 2496 transitions. [2020-11-28 03:10:00,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-11-28 03:10:00,536 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:00,537 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:00,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:10:00,537 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:00,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:00,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1228308117, now seen corresponding path program 1 times [2020-11-28 03:10:00,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:00,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94743448] [2020-11-28 03:10:00,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:00,637 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-28 03:10:00,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94743448] [2020-11-28 03:10:00,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:00,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:10:00,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851683204] [2020-11-28 03:10:00,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:00,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:00,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:00,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:00,639 INFO L87 Difference]: Start difference. First operand 2275 states and 2496 transitions. Second operand 3 states. [2020-11-28 03:10:01,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:01,099 INFO L93 Difference]: Finished difference Result 3120 states and 3416 transitions. [2020-11-28 03:10:01,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:01,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-11-28 03:10:01,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:01,115 INFO L225 Difference]: With dead ends: 3120 [2020-11-28 03:10:01,115 INFO L226 Difference]: Without dead ends: 1137 [2020-11-28 03:10:01,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:01,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2020-11-28 03:10:01,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1137. [2020-11-28 03:10:01,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1137 states. [2020-11-28 03:10:01,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1200 transitions. [2020-11-28 03:10:01,141 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1200 transitions. Word has length 154 [2020-11-28 03:10:01,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:01,141 INFO L481 AbstractCegarLoop]: Abstraction has 1137 states and 1200 transitions. [2020-11-28 03:10:01,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:10:01,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1200 transitions. [2020-11-28 03:10:01,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-11-28 03:10:01,144 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:01,144 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:01,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:10:01,145 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:01,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:01,145 INFO L82 PathProgramCache]: Analyzing trace with hash 322604635, now seen corresponding path program 1 times [2020-11-28 03:10:01,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:01,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004495915] [2020-11-28 03:10:01,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:01,256 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:01,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004495915] [2020-11-28 03:10:01,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:01,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:10:01,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053035001] [2020-11-28 03:10:01,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:01,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:01,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:01,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:01,259 INFO L87 Difference]: Start difference. First operand 1137 states and 1200 transitions. Second operand 3 states. [2020-11-28 03:10:01,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:01,628 INFO L93 Difference]: Finished difference Result 1987 states and 2097 transitions. [2020-11-28 03:10:01,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:01,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-11-28 03:10:01,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:01,632 INFO L225 Difference]: With dead ends: 1987 [2020-11-28 03:10:01,632 INFO L226 Difference]: Without dead ends: 992 [2020-11-28 03:10:01,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:01,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2020-11-28 03:10:01,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 992. [2020-11-28 03:10:01,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 992 states. [2020-11-28 03:10:01,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1023 transitions. [2020-11-28 03:10:01,653 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1023 transitions. Word has length 189 [2020-11-28 03:10:01,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:01,654 INFO L481 AbstractCegarLoop]: Abstraction has 992 states and 1023 transitions. [2020-11-28 03:10:01,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:10:01,654 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1023 transitions. [2020-11-28 03:10:01,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-28 03:10:01,658 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:01,659 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:01,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:10:01,659 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:01,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:01,660 INFO L82 PathProgramCache]: Analyzing trace with hash -676408817, now seen corresponding path program 1 times [2020-11-28 03:10:01,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:01,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260058112] [2020-11-28 03:10:01,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:01,936 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 150 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:01,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260058112] [2020-11-28 03:10:01,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282501857] [2020-11-28 03:10:01,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:10:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:02,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:10:02,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:10:02,133 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-11-28 03:10:02,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:10:02,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-28 03:10:02,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641978890] [2020-11-28 03:10:02,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:02,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:02,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:02,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:10:02,135 INFO L87 Difference]: Start difference. First operand 992 states and 1023 transitions. Second operand 3 states. [2020-11-28 03:10:02,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:02,542 INFO L93 Difference]: Finished difference Result 2122 states and 2187 transitions. [2020-11-28 03:10:02,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:02,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2020-11-28 03:10:02,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:02,547 INFO L225 Difference]: With dead ends: 2122 [2020-11-28 03:10:02,547 INFO L226 Difference]: Without dead ends: 990 [2020-11-28 03:10:02,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:10:02,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2020-11-28 03:10:02,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 990. [2020-11-28 03:10:02,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 990 states. [2020-11-28 03:10:02,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1015 transitions. [2020-11-28 03:10:02,567 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1015 transitions. Word has length 241 [2020-11-28 03:10:02,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:02,568 INFO L481 AbstractCegarLoop]: Abstraction has 990 states and 1015 transitions. [2020-11-28 03:10:02,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:10:02,568 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1015 transitions. [2020-11-28 03:10:02,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-11-28 03:10:02,572 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:02,573 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:02,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:10:02,786 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:02,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:02,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1434295288, now seen corresponding path program 1 times [2020-11-28 03:10:02,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:02,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42015619] [2020-11-28 03:10:02,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:02,989 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:02,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42015619] [2020-11-28 03:10:02,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:02,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:10:02,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720004151] [2020-11-28 03:10:02,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:10:02,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:02,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:10:02,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:10:02,991 INFO L87 Difference]: Start difference. First operand 990 states and 1015 transitions. Second operand 4 states. [2020-11-28 03:10:03,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:03,385 INFO L93 Difference]: Finished difference Result 1694 states and 1742 transitions. [2020-11-28 03:10:03,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:03,385 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 246 [2020-11-28 03:10:03,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:03,385 INFO L225 Difference]: With dead ends: 1694 [2020-11-28 03:10:03,385 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:10:03,387 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:10:03,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:10:03,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:10:03,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:10:03,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:10:03,387 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 246 [2020-11-28 03:10:03,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:03,387 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:10:03,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:10:03,387 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:10:03,387 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:10:03,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:10:03,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:10:03,711 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2020-11-28 03:10:04,025 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2020-11-28 03:10:04,027 INFO L274 CegarLoopResult]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,028 INFO L274 CegarLoopResult]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,028 INFO L274 CegarLoopResult]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,028 INFO L274 CegarLoopResult]: For program point L301(lines 301 423) no Hoare annotation was computed. [2020-11-28 03:10:04,028 INFO L274 CegarLoopResult]: For program point L235(lines 235 423) no Hoare annotation was computed. [2020-11-28 03:10:04,028 INFO L274 CegarLoopResult]: For program point L169(lines 169 423) no Hoare annotation was computed. [2020-11-28 03:10:04,028 INFO L274 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-11-28 03:10:04,028 INFO L274 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-11-28 03:10:04,028 INFO L274 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-11-28 03:10:04,028 INFO L274 CegarLoopResult]: For program point L303(lines 303 423) no Hoare annotation was computed. [2020-11-28 03:10:04,028 INFO L274 CegarLoopResult]: For program point L105(lines 105 423) no Hoare annotation was computed. [2020-11-28 03:10:04,028 INFO L274 CegarLoopResult]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,028 INFO L274 CegarLoopResult]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,028 INFO L274 CegarLoopResult]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,028 INFO L274 CegarLoopResult]: For program point L40(lines 40 423) no Hoare annotation was computed. [2020-11-28 03:10:04,028 INFO L274 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-11-28 03:10:04,029 INFO L274 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-11-28 03:10:04,029 INFO L274 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-11-28 03:10:04,029 INFO L274 CegarLoopResult]: For program point L371(lines 371 423) no Hoare annotation was computed. [2020-11-28 03:10:04,029 INFO L274 CegarLoopResult]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,029 INFO L274 CegarLoopResult]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,029 INFO L274 CegarLoopResult]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,029 INFO L274 CegarLoopResult]: For program point L307(lines 307 423) no Hoare annotation was computed. [2020-11-28 03:10:04,029 INFO L274 CegarLoopResult]: For program point L175(lines 175 423) no Hoare annotation was computed. [2020-11-28 03:10:04,029 INFO L274 CegarLoopResult]: For program point L109(lines 109 423) no Hoare annotation was computed. [2020-11-28 03:10:04,029 INFO L274 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-11-28 03:10:04,029 INFO L274 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-11-28 03:10:04,029 INFO L274 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-11-28 03:10:04,029 INFO L274 CegarLoopResult]: For program point L308(lines 308 317) no Hoare annotation was computed. [2020-11-28 03:10:04,029 INFO L274 CegarLoopResult]: For program point L242(lines 242 423) no Hoare annotation was computed. [2020-11-28 03:10:04,029 INFO L274 CegarLoopResult]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2020-11-28 03:10:04,029 INFO L274 CegarLoopResult]: For program point L45(lines 45 423) no Hoare annotation was computed. [2020-11-28 03:10:04,030 INFO L274 CegarLoopResult]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,030 INFO L274 CegarLoopResult]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,030 INFO L274 CegarLoopResult]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,030 INFO L274 CegarLoopResult]: For program point L244(lines 244 423) no Hoare annotation was computed. [2020-11-28 03:10:04,030 INFO L274 CegarLoopResult]: For program point L575(line 575) no Hoare annotation was computed. [2020-11-28 03:10:04,030 INFO L274 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-11-28 03:10:04,030 INFO L274 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-11-28 03:10:04,030 INFO L274 CegarLoopResult]: For program point L179(lines 179 423) no Hoare annotation was computed. [2020-11-28 03:10:04,030 INFO L274 CegarLoopResult]: For program point L378(lines 378 423) no Hoare annotation was computed. [2020-11-28 03:10:04,030 INFO L274 CegarLoopResult]: For program point L48(lines 48 423) no Hoare annotation was computed. [2020-11-28 03:10:04,030 INFO L274 CegarLoopResult]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,030 INFO L274 CegarLoopResult]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,030 INFO L274 CegarLoopResult]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,030 INFO L274 CegarLoopResult]: For program point L247(lines 247 423) no Hoare annotation was computed. [2020-11-28 03:10:04,030 INFO L274 CegarLoopResult]: For program point L578(line 578) no Hoare annotation was computed. [2020-11-28 03:10:04,030 INFO L274 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-11-28 03:10:04,031 INFO L274 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-11-28 03:10:04,031 INFO L274 CegarLoopResult]: For program point L248(lines 248 256) no Hoare annotation was computed. [2020-11-28 03:10:04,031 INFO L274 CegarLoopResult]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2020-11-28 03:10:04,031 INFO L274 CegarLoopResult]: For program point L116(lines 116 423) no Hoare annotation was computed. [2020-11-28 03:10:04,031 INFO L274 CegarLoopResult]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,031 INFO L274 CegarLoopResult]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,031 INFO L274 CegarLoopResult]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,031 INFO L274 CegarLoopResult]: For program point L52(lines 52 423) no Hoare annotation was computed. [2020-11-28 03:10:04,031 INFO L274 CegarLoopResult]: For program point L581(line 581) no Hoare annotation was computed. [2020-11-28 03:10:04,031 INFO L274 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-11-28 03:10:04,031 INFO L274 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-11-28 03:10:04,031 INFO L274 CegarLoopResult]: For program point L185(lines 185 423) no Hoare annotation was computed. [2020-11-28 03:10:04,031 INFO L274 CegarLoopResult]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,031 INFO L274 CegarLoopResult]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,031 INFO L274 CegarLoopResult]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,031 INFO L274 CegarLoopResult]: For program point L385(lines 385 423) no Hoare annotation was computed. [2020-11-28 03:10:04,032 INFO L274 CegarLoopResult]: For program point L319(lines 319 423) no Hoare annotation was computed. [2020-11-28 03:10:04,032 INFO L274 CegarLoopResult]: For program point L584(line 584) no Hoare annotation was computed. [2020-11-28 03:10:04,032 INFO L274 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-11-28 03:10:04,032 INFO L274 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-11-28 03:10:04,032 INFO L274 CegarLoopResult]: For program point L189(lines 189 423) no Hoare annotation was computed. [2020-11-28 03:10:04,032 INFO L274 CegarLoopResult]: For program point L123(lines 123 423) no Hoare annotation was computed. [2020-11-28 03:10:04,032 INFO L274 CegarLoopResult]: For program point L57(lines 57 423) no Hoare annotation was computed. [2020-11-28 03:10:04,032 INFO L274 CegarLoopResult]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,032 INFO L274 CegarLoopResult]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,032 INFO L274 CegarLoopResult]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,032 INFO L274 CegarLoopResult]: For program point L388(lines 388 423) no Hoare annotation was computed. [2020-11-28 03:10:04,032 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:10:04,032 INFO L274 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-11-28 03:10:04,032 INFO L274 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-11-28 03:10:04,032 INFO L274 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-11-28 03:10:04,032 INFO L274 CegarLoopResult]: For program point L390(lines 390 423) no Hoare annotation was computed. [2020-11-28 03:10:04,032 INFO L274 CegarLoopResult]: For program point L324(lines 324 423) no Hoare annotation was computed. [2020-11-28 03:10:04,033 INFO L274 CegarLoopResult]: For program point L258(lines 258 423) no Hoare annotation was computed. [2020-11-28 03:10:04,033 INFO L274 CegarLoopResult]: For program point L60(lines 60 423) no Hoare annotation was computed. [2020-11-28 03:10:04,033 INFO L274 CegarLoopResult]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,033 INFO L274 CegarLoopResult]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,033 INFO L274 CegarLoopResult]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,033 INFO L274 CegarLoopResult]: For program point L391(lines 391 397) no Hoare annotation was computed. [2020-11-28 03:10:04,033 INFO L274 CegarLoopResult]: For program point L325(lines 325 336) no Hoare annotation was computed. [2020-11-28 03:10:04,033 INFO L274 CegarLoopResult]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2020-11-28 03:10:04,033 INFO L274 CegarLoopResult]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2020-11-28 03:10:04,033 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-11-28 03:10:04,033 INFO L274 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-11-28 03:10:04,033 INFO L274 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-11-28 03:10:04,033 INFO L274 CegarLoopResult]: For program point L195(lines 195 423) no Hoare annotation was computed. [2020-11-28 03:10:04,033 INFO L274 CegarLoopResult]: For program point L129(lines 129 423) no Hoare annotation was computed. [2020-11-28 03:10:04,033 INFO L274 CegarLoopResult]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,033 INFO L274 CegarLoopResult]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,034 INFO L274 CegarLoopResult]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,034 INFO L274 CegarLoopResult]: For program point L64(lines 64 423) no Hoare annotation was computed. [2020-11-28 03:10:04,034 INFO L274 CegarLoopResult]: For program point L593(line 593) no Hoare annotation was computed. [2020-11-28 03:10:04,034 INFO L274 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-11-28 03:10:04,034 INFO L274 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-11-28 03:10:04,034 INFO L274 CegarLoopResult]: For program point L263(lines 263 423) no Hoare annotation was computed. [2020-11-28 03:10:04,034 INFO L274 CegarLoopResult]: For program point L197(lines 197 423) no Hoare annotation was computed. [2020-11-28 03:10:04,034 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:10:04,034 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 03:10:04,034 INFO L274 CegarLoopResult]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,034 INFO L274 CegarLoopResult]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,034 INFO L274 CegarLoopResult]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,034 INFO L274 CegarLoopResult]: For program point L199(lines 199 423) no Hoare annotation was computed. [2020-11-28 03:10:04,034 INFO L274 CegarLoopResult]: For program point L133(lines 133 423) no Hoare annotation was computed. [2020-11-28 03:10:04,034 INFO L274 CegarLoopResult]: For program point L596(line 596) no Hoare annotation was computed. [2020-11-28 03:10:04,035 INFO L274 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-11-28 03:10:04,035 INFO L274 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-11-28 03:10:04,035 INFO L274 CegarLoopResult]: For program point L399(lines 399 423) no Hoare annotation was computed. [2020-11-28 03:10:04,035 INFO L274 CegarLoopResult]: For program point L201(lines 201 423) no Hoare annotation was computed. [2020-11-28 03:10:04,035 INFO L274 CegarLoopResult]: For program point L69(lines 69 423) no Hoare annotation was computed. [2020-11-28 03:10:04,035 INFO L274 CegarLoopResult]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,035 INFO L274 CegarLoopResult]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,035 INFO L274 CegarLoopResult]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,040 INFO L274 CegarLoopResult]: For program point L599(line 599) no Hoare annotation was computed. [2020-11-28 03:10:04,041 INFO L274 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-11-28 03:10:04,041 INFO L274 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-11-28 03:10:04,041 INFO L274 CegarLoopResult]: For program point L269(lines 269 423) no Hoare annotation was computed. [2020-11-28 03:10:04,041 INFO L274 CegarLoopResult]: For program point L204(lines 204 423) no Hoare annotation was computed. [2020-11-28 03:10:04,041 INFO L274 CegarLoopResult]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,041 INFO L274 CegarLoopResult]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,041 INFO L274 CegarLoopResult]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,041 INFO L274 CegarLoopResult]: For program point L271(lines 271 423) no Hoare annotation was computed. [2020-11-28 03:10:04,042 INFO L274 CegarLoopResult]: For program point L602(line 602) no Hoare annotation was computed. [2020-11-28 03:10:04,042 INFO L274 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-11-28 03:10:04,042 INFO L274 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-11-28 03:10:04,042 INFO L274 CegarLoopResult]: For program point L404(lines 404 423) no Hoare annotation was computed. [2020-11-28 03:10:04,042 INFO L274 CegarLoopResult]: For program point L338(lines 338 423) no Hoare annotation was computed. [2020-11-28 03:10:04,042 INFO L274 CegarLoopResult]: For program point L272(lines 272 284) no Hoare annotation was computed. [2020-11-28 03:10:04,043 INFO L274 CegarLoopResult]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2020-11-28 03:10:04,043 INFO L274 CegarLoopResult]: For program point L140(lines 140 423) no Hoare annotation was computed. [2020-11-28 03:10:04,043 INFO L274 CegarLoopResult]: For program point L75(lines 75 423) no Hoare annotation was computed. [2020-11-28 03:10:04,043 INFO L274 CegarLoopResult]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2020-11-28 03:10:04,043 INFO L274 CegarLoopResult]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,043 INFO L274 CegarLoopResult]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,043 INFO L274 CegarLoopResult]: For program point L208(lines 208 423) no Hoare annotation was computed. [2020-11-28 03:10:04,044 INFO L274 CegarLoopResult]: For program point L605(line 605) no Hoare annotation was computed. [2020-11-28 03:10:04,044 INFO L274 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-11-28 03:10:04,044 INFO L274 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-11-28 03:10:04,044 INFO L274 CegarLoopResult]: For program point L341(lines 341 423) no Hoare annotation was computed. [2020-11-28 03:10:04,044 INFO L274 CegarLoopResult]: For program point L408(lines 408 423) no Hoare annotation was computed. [2020-11-28 03:10:04,044 INFO L274 CegarLoopResult]: For program point L342(lines 342 345) no Hoare annotation was computed. [2020-11-28 03:10:04,044 INFO L274 CegarLoopResult]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2020-11-28 03:10:04,044 INFO L274 CegarLoopResult]: For program point L144(lines 144 423) no Hoare annotation was computed. [2020-11-28 03:10:04,045 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 03:10:04,045 INFO L270 CegarLoopResult]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse1 (= ~a21~0 1)) (.cse2 (= ~a17~0 8)) (.cse5 (<= ~a19~0 0)) (.cse10 (<= ~a28~0 9)) (.cse9 (<= 9 ~a28~0)) (.cse4 (<= ~a28~0 7)) (.cse8 (= ~a11~0 1)) (.cse0 (= ~a19~0 1)) (.cse6 (= ~a25~0 1)) (.cse3 (= ~a11~0 0)) (.cse7 (<= ~a17~0 8))) (or (and (= ~a25~0 ~a11~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 (= ~a28~0 10)) (and .cse5 .cse6 .cse3 .cse7 (<= ~a28~0 10)) (and .cse5 .cse8 .cse7) (and .cse9 .cse0 .cse3 .cse10 .cse7) (and .cse5 .cse10 .cse3 .cse7) (and .cse9 .cse0 .cse7 .cse8) (and .cse0 .cse6 .cse4 .cse8 (<= ~a17~0 7)) (and .cse0 .cse6 .cse3 .cse7))) [2020-11-28 03:10:04,045 INFO L274 CegarLoopResult]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,046 INFO L274 CegarLoopResult]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,046 INFO L274 CegarLoopResult]: For program point L79(lines 79 423) no Hoare annotation was computed. [2020-11-28 03:10:04,046 INFO L274 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-11-28 03:10:04,046 INFO L274 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-11-28 03:10:04,046 INFO L274 CegarLoopResult]: For program point L212(lines 212 423) no Hoare annotation was computed. [2020-11-28 03:10:04,046 INFO L274 CegarLoopResult]: For program point L213(lines 213 220) no Hoare annotation was computed. [2020-11-28 03:10:04,046 INFO L274 CegarLoopResult]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2020-11-28 03:10:04,046 INFO L277 CegarLoopResult]: At program point L610(lines 610 627) the Hoare annotation is: true [2020-11-28 03:10:04,047 INFO L274 CegarLoopResult]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,047 INFO L274 CegarLoopResult]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,047 INFO L274 CegarLoopResult]: For program point L412(lines 412 423) no Hoare annotation was computed. [2020-11-28 03:10:04,047 INFO L274 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-11-28 03:10:04,047 INFO L274 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-11-28 03:10:04,047 INFO L274 CegarLoopResult]: For program point L347(lines 347 423) no Hoare annotation was computed. [2020-11-28 03:10:04,047 INFO L274 CegarLoopResult]: For program point L149(lines 149 423) no Hoare annotation was computed. [2020-11-28 03:10:04,047 INFO L274 CegarLoopResult]: For program point L414(lines 414 423) no Hoare annotation was computed. [2020-11-28 03:10:04,047 INFO L274 CegarLoopResult]: For program point L348(lines 348 357) no Hoare annotation was computed. [2020-11-28 03:10:04,047 INFO L274 CegarLoopResult]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2020-11-28 03:10:04,047 INFO L274 CegarLoopResult]: For program point L84(lines 84 423) no Hoare annotation was computed. [2020-11-28 03:10:04,047 INFO L274 CegarLoopResult]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,047 INFO L274 CegarLoopResult]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,047 INFO L274 CegarLoopResult]: For program point L85(lines 85 90) no Hoare annotation was computed. [2020-11-28 03:10:04,047 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2020-11-28 03:10:04,048 INFO L274 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-11-28 03:10:04,048 INFO L274 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-11-28 03:10:04,048 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:10:04,048 INFO L274 CegarLoopResult]: For program point L417(lines 417 423) no Hoare annotation was computed. [2020-11-28 03:10:04,048 INFO L274 CegarLoopResult]: For program point L153(lines 153 423) no Hoare annotation was computed. [2020-11-28 03:10:04,048 INFO L270 CegarLoopResult]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse1 (= ~a21~0 1)) (.cse2 (= ~a17~0 8)) (.cse5 (<= ~a19~0 0)) (.cse10 (<= ~a28~0 9)) (.cse9 (<= 9 ~a28~0)) (.cse4 (<= ~a28~0 7)) (.cse8 (= ~a11~0 1)) (.cse0 (= ~a19~0 1)) (.cse6 (= ~a25~0 1)) (.cse3 (= ~a11~0 0)) (.cse7 (<= ~a17~0 8))) (or (and (= ~a25~0 ~a11~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 (= ~a28~0 10)) (and .cse5 .cse6 .cse3 .cse7 (<= ~a28~0 10)) (and .cse5 .cse8 .cse7) (and .cse9 .cse0 .cse3 .cse10 .cse7) (and .cse5 .cse10 .cse3 .cse7) (and .cse9 .cse0 .cse7 .cse8) (and .cse0 .cse6 .cse4 .cse8 (<= ~a17~0 7)) (and .cse0 .cse6 .cse3 .cse7))) [2020-11-28 03:10:04,048 INFO L274 CegarLoopResult]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,048 INFO L274 CegarLoopResult]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,048 INFO L274 CegarLoopResult]: For program point L286(lines 286 423) no Hoare annotation was computed. [2020-11-28 03:10:04,048 INFO L274 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-11-28 03:10:04,048 INFO L274 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-11-28 03:10:04,048 INFO L274 CegarLoopResult]: For program point L419(lines 419 423) no Hoare annotation was computed. [2020-11-28 03:10:04,049 INFO L274 CegarLoopResult]: For program point L222(lines 222 423) no Hoare annotation was computed. [2020-11-28 03:10:04,049 INFO L274 CegarLoopResult]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,049 INFO L274 CegarLoopResult]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,049 INFO L274 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-11-28 03:10:04,049 INFO L274 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-11-28 03:10:04,049 INFO L274 CegarLoopResult]: For program point L290(lines 290 423) no Hoare annotation was computed. [2020-11-28 03:10:04,049 INFO L274 CegarLoopResult]: For program point L158(lines 158 423) no Hoare annotation was computed. [2020-11-28 03:10:04,049 INFO L274 CegarLoopResult]: For program point L92(lines 92 423) no Hoare annotation was computed. [2020-11-28 03:10:04,049 INFO L274 CegarLoopResult]: For program point L621(line 621) no Hoare annotation was computed. [2020-11-28 03:10:04,049 INFO L274 CegarLoopResult]: For program point L225(lines 225 423) no Hoare annotation was computed. [2020-11-28 03:10:04,049 INFO L274 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-11-28 03:10:04,049 INFO L274 CegarLoopResult]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2020-11-28 03:10:04,049 INFO L274 CegarLoopResult]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,049 INFO L274 CegarLoopResult]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,049 INFO L274 CegarLoopResult]: For program point L424(lines 424 426) no Hoare annotation was computed. [2020-11-28 03:10:04,050 INFO L274 CegarLoopResult]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,050 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:10:04,050 INFO L274 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-11-28 03:10:04,050 INFO L274 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-11-28 03:10:04,050 INFO L274 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-11-28 03:10:04,050 INFO L274 CegarLoopResult]: For program point L359(lines 359 423) no Hoare annotation was computed. [2020-11-28 03:10:04,050 INFO L274 CegarLoopResult]: For program point L293(lines 293 423) no Hoare annotation was computed. [2020-11-28 03:10:04,050 INFO L274 CegarLoopResult]: For program point L228(lines 228 423) no Hoare annotation was computed. [2020-11-28 03:10:04,050 INFO L274 CegarLoopResult]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,050 INFO L274 CegarLoopResult]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,050 INFO L274 CegarLoopResult]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,050 INFO L274 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-11-28 03:10:04,050 INFO L274 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-11-28 03:10:04,050 INFO L274 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-11-28 03:10:04,051 INFO L274 CegarLoopResult]: For program point L296(lines 296 423) no Hoare annotation was computed. [2020-11-28 03:10:04,051 INFO L274 CegarLoopResult]: For program point L164(lines 164 423) no Hoare annotation was computed. [2020-11-28 03:10:04,051 INFO L274 CegarLoopResult]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,051 INFO L274 CegarLoopResult]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,051 INFO L274 CegarLoopResult]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:10:04,051 INFO L274 CegarLoopResult]: For program point L364(lines 364 423) no Hoare annotation was computed. [2020-11-28 03:10:04,051 INFO L274 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-11-28 03:10:04,051 INFO L274 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-11-28 03:10:04,051 INFO L274 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-11-28 03:10:04,051 INFO L274 CegarLoopResult]: For program point L233(lines 233 423) no Hoare annotation was computed. [2020-11-28 03:10:04,051 INFO L274 CegarLoopResult]: For program point L101(lines 101 423) no Hoare annotation was computed. [2020-11-28 03:10:04,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:10:04 BoogieIcfgContainer [2020-11-28 03:10:04,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:10:04,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:10:04,095 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:10:04,096 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:10:04,096 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:51" (3/4) ... [2020-11-28 03:10:04,099 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:10:04,138 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 03:10:04,139 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:10:04,141 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:10:04,142 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:10:04,324 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3db6429b-d304-45fc-b222-5e06bea37dc7/bin/uautomizer/witness.graphml [2020-11-28 03:10:04,324 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:10:04,325 INFO L168 Benchmark]: Toolchain (without parser) took 15111.16 ms. Allocated memory was 94.4 MB in the beginning and 362.8 MB in the end (delta: 268.4 MB). Free memory was 61.0 MB in the beginning and 312.1 MB in the end (delta: -251.1 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:04,325 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 73.4 MB. Free memory was 35.3 MB in the beginning and 35.3 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:10:04,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 603.63 ms. Allocated memory is still 94.4 MB. Free memory was 60.8 MB in the beginning and 56.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:04,326 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.50 ms. Allocated memory is still 94.4 MB. Free memory was 56.0 MB in the beginning and 50.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:04,326 INFO L168 Benchmark]: Boogie Preprocessor took 77.62 ms. Allocated memory is still 94.4 MB. Free memory was 50.6 MB in the beginning and 46.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:04,327 INFO L168 Benchmark]: RCFGBuilder took 1295.79 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 46.4 MB in the beginning and 78.6 MB in the end (delta: -32.2 MB). Peak memory consumption was 28.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:04,327 INFO L168 Benchmark]: TraceAbstraction took 12813.87 ms. Allocated memory was 121.6 MB in the beginning and 362.8 MB in the end (delta: 241.2 MB). Free memory was 78.6 MB in the beginning and 326.8 MB in the end (delta: -248.3 MB). Peak memory consumption was 166.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:04,328 INFO L168 Benchmark]: Witness Printer took 228.54 ms. Allocated memory is still 362.8 MB. Free memory was 326.8 MB in the beginning and 312.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:04,330 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 73.4 MB. Free memory was 35.3 MB in the beginning and 35.3 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 603.63 ms. Allocated memory is still 94.4 MB. Free memory was 60.8 MB in the beginning and 56.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.50 ms. Allocated memory is still 94.4 MB. Free memory was 56.0 MB in the beginning and 50.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.62 ms. Allocated memory is still 94.4 MB. Free memory was 50.6 MB in the beginning and 46.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1295.79 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 46.4 MB in the beginning and 78.6 MB in the end (delta: -32.2 MB). Peak memory consumption was 28.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12813.87 ms. Allocated memory was 121.6 MB in the beginning and 362.8 MB in the end (delta: 241.2 MB). Free memory was 78.6 MB in the beginning and 326.8 MB in the end (delta: -248.3 MB). Peak memory consumption was 166.1 MB. Max. memory is 16.1 GB. * Witness Printer took 228.54 ms. Allocated memory is still 362.8 MB. Free memory was 326.8 MB in the beginning and 312.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: ((((((((((((a25 == a11 && a19 == 1) && a21 == 1) && a17 == 8) && a11 == 0) && a28 <= 7) || (((a19 == 1 && a21 == 1) && a17 == 8) && a28 == 10)) || ((((a19 <= 0 && a25 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10)) || ((a19 <= 0 && a11 == 1) && a17 <= 8)) || ((((9 <= a28 && a19 == 1) && a11 == 0) && a28 <= 9) && a17 <= 8)) || (((a19 <= 0 && a28 <= 9) && a11 == 0) && a17 <= 8)) || (((9 <= a28 && a19 == 1) && a17 <= 8) && a11 == 1)) || ((((a19 == 1 && a25 == 1) && a28 <= 7) && a11 == 1) && a17 <= 7)) || (((a19 == 1 && a25 == 1) && a11 == 0) && a17 <= 8) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((((((a25 == a11 && a19 == 1) && a21 == 1) && a17 == 8) && a11 == 0) && a28 <= 7) || (((a19 == 1 && a21 == 1) && a17 == 8) && a28 == 10)) || ((((a19 <= 0 && a25 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10)) || ((a19 <= 0 && a11 == 1) && a17 <= 8)) || ((((9 <= a28 && a19 == 1) && a11 == 0) && a28 <= 9) && a17 <= 8)) || (((a19 <= 0 && a28 <= 9) && a11 == 0) && a17 <= 8)) || (((9 <= a28 && a19 == 1) && a17 <= 8) && a11 == 1)) || ((((a19 == 1 && a25 == 1) && a28 <= 7) && a11 == 1) && a17 <= 7)) || (((a19 == 1 && a25 == 1) && a11 == 0) && a17 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.0s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1536 SDtfs, 1853 SDslu, 189 SDs, 0 SdLazy, 4406 SolverSat, 669 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 667 GetRequests, 639 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2275occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 610 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 41 NumberOfFragments, 261 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1050 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 162 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 2489 NumberOfCodeBlocks, 2489 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2473 ConstructedInterpolants, 0 QuantifiedInterpolants, 1147022 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1235 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 1034/1134 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...